Equalizing device for direct-acting engines.



'vele1 `to the oppoeitc or counter-meting wir T FFCE.

OTTO HILDEBERT.'M'UELLER, OF BERLIN, GERMANY, ASSIGNOR TO HENRY R. WORTHINGTON, OF

OIF NEW JERSEY.

EQUALlZlNG. DEVICE FOR Specification of Letters Patent.

NEW YORK, N. Y., A CORPORATION DIRECT-ACTING ENGINES.

Patented March 5, 1907.

Anplieation led October 16, 1903. Serial Ne. 177,281.

Be it known the-t l, OTTO lllILlixEuER'r MUELLER, n. suhieet of the Gel-num llhnperor, residing et Berlin, WV., in the German E1npire, have invented certain new und useful. Improvements Relating to ,llquelizingr De vices 'for Direct-Acting Engines, ol" which the following,1r 4is e epeci'l" cation.

This invention relates to e, compeneatingA cylinder 'as often applied. to flirect-ecting pumping and'blowingr engines for equelizing the forcee acting in t 1c motor-cj;lindern The invention 'specially rclete'e to euch eqnalizers in which e piston acts in opposiH tion to the movement of the engine during one part of the stro-ke mid in conjunction therewith during another part of the stroke;l end the special 'feature ol it is that et ell tim-es ,it autom:rticnlly eeconnnodntes itself to the requirements o'l` the'eng1ne,so that any veria-tiene in the distribution ofthe motor f fluid in thel mehr engine or in the speed of it may' 'h "e effec-led \\'1tlrout nllecting the proper running ol" the' engine.

be exhausted tothe ntmosphere'or :uln'litted Again to the snppl i'-pu1np of thc.` motor ['h'lid, thus. working in n. circle. l(1 urther menne ere l'Jrfwide-(l-for regulating the height ol' the pre., sure ol" the motor llluid on hoth sides ot the compensotorpision o' d 4for .regula-ling the change of the. pre ure ol the motor .[luid during dil'crent parte of l he .sl-rohe.

ln the ncconipnnyi-ln: dreh-'inge u co1npe1i- Heter of the nbovc type is illustrated, Figure 1 showhig n. l'ongiti-ldmztl section through it; Figfl, e horizmilel rose-section on the' line A. end- Fig. 3, Fig; 4,- iind Fig. various fornisof the by-pn-ssng device.

The seid'illustret'ione refer ton fixed cylinder set et right anglesl lo the center line of the engineend'show e combination of links up plieuble for the proper transmission of the forces on the compensntrwpiseron .o the engine piston-rods.

:mism may, however, be substituted, and also the cylinder maybe Mjrenged oscillating To attain this ,0nd, y the compenSht-or consists of' n cylinder closed Any other suite-ble mech i applied syinlnci,ricfrll'y acting; onone pistone" rod. As cnn he seen from Fig. .1, the cylinder l, fitted with a reliel"-\ al'\e 2 endfixed to the engine-cradle, hes in its lower pnrt en opening 3, through which the motor .lluid .is continuellj,T admitted, exerting e. fairly constant pressure on pieton 4. The motor fluid may he sup i plied by n. pump, (not shown in the .drewings,) eind Vwhich pump may he :attached to the engine or worked independently, or the motor fluid may he supplied from :my other source under constant pressure. Piston fi is lit-ted with n port 5, which is constantly open to the wmkingside of the pieton, hut .the other end of which. (iis kept closed by' the inner surface of the .l linder during the green t est part o1" the stroke. Onlyr when thev piston fil-tenis a. certein length of the upstrohe the mouth 6 oi' the port traveling over the upper edge of the cvvlilulereh'ore is leid open, thns i 'forming e eornnuinif-.etien between the two l sides of th e cylinder, or, es shown initie. 3, in place of the porte inthe piston the cylinder l muy he supplied with en outside pipe eonnec tion 12 :rnd: valve 13. In this ense the opening 1.1 will herve to he covered end laid open hy the piston, whilel tlui tlier endren'lains constantly open. 'Valve iler regu-- latineF the size of the communication, or ini .e1-ond ot' ports vulve 21 ina-yhe applied on the piston, Shown in Fig. -1 opened by en erh l justnhle screw 2L, it the piston cornes high emmgh, or such, n valve 23 muy he arranged in the vlinder, :is shown in Fig. 5, activa-eri by the pis-tr. i end huir 'pe communica.-

tion M between the two eide ol thc cylindel' 1.

'Returning' t0 Fig.

it will hc observed l e. 'few of these chambers muy. he'connccted with either the upper or lower side of' the cylinder.

\ The device is completed bv the trensmitl ting mechanism consisting el piston-rod 14,

Ifrese-heed 15, linke` 16 and 1T', the latter Jivoted et Z'mideonnected with the former liy holt 1S, which by means of the slide-piece llunovesup and downin tlieqyokfe 2O,-4 connected to 'the' enginefpistourod's '2.1. As already Amentioned, suitable 'mechanism maybe substituted, care 'being tal-:en that pistoni-r 5 l 'r' changing the length'oflthe pistonfrod 1 4`- t e o' ning' 6 or 1.1 may be laid open, sooner 'or la't'jl'orthe valves in Figs'. ge'nd'' liitedeerlier'or litt-er.

put in operation;J

The 'device-'as described ebove work as follows; Supposed, the engine to ,be the inotor fluid having been admitted tothe opening'B'f exerts aconstantV ton 4 "great enough to part y -forces in'` the 1notor '-cylin der 'ofi .t 'e engine. by constantly su stroke Will lengt open- 'opening 6 (01PM-,

valves' in Figs. tand 5, w ereby the vmotor iluid'isf'partly by-p'a'ssed to the opposite side- The passage of" the Hinton' ofthe piston. 'iiui'rl"t1rrough the by-pass'will cor.1tinue and the rj'ssure on the opposite side- Willrise' unti the relief-valve gert; of the motor l'iuidtothe .atmosphere or ack v to the supply-pump; Aseso'o'n 'es4 as V much of the motor iluidlis exhausted-at each is -supplied at theen'cl'of" 3 the'` state of 'equililifv and' keptfup until any .v

stroke through 2 as such stroke through rium. will be vreached change occurs of the forces in thglenginehor of its speed. If'for anyreason.thefstrokeof this mnin piston lengthens, the by-pass i111 thel 'compensator remains open a' longer time and supplies. an excess of st roke.-4 Iii-he stroke becomes too'short,tlie

bi r-pas's Willnot be open long enough to supthe normal quantity of pressure fluid-onto? of the compensator-piston, 'and the stroke wi l consequently lengthen. Thus by-passwill beduninislied or increased until are 1u oter4 state equilibriurnestablishes itself,l

and sotlre com ensa'tor W- ill always work in accordance; 'with Engines. i

This compensator may work with high or low' -pressures ence oipress'ures on both'sides driving it only 5:

'.butthej height 'of the, pressures in( be limited setting the' spring and it islfurthennecessary that, dcpending'o'n the nature or {tyJe offA the eng-me, the driving pressures in' 't 1e compensator vary differently "dl'ning the'travel' of the compelxsator-pistoii.

This ca nbeattained by putting in connnw '-Iiication 'one or more chambers 7 S' with either the upper or the' 'lower sido of'tlic 'compensator-piston, whereby the ratio of the expansionand compression of thfe'inotor fluid es' 'compared with the variations in.

will" nowlowe'r fiertoi cylinder 1 by' ress urewon pis- 'e ual1ze the' l'with during i pressure on the topof` 'the c omperisator-piston, which shortens the 'controlled by thelength'of the w i fluid -irom the Working' sidssi 1o Aforces actingv on the' of thefmotor fluid, the d'iiliery lift of theA reliefvalve' For a satisfactory working" Volume'eil'eeted by the/movement of the pis"- ton een be changed on either-of these sides.

Vi'lnit I claim as nivl invention, and desire l. The combination, witl'i engine, of a compensating 'cylinder' having a pistonjwlnch acts inopposition to the movefirst `part of the' stroke and in conjunctiontherewitli during the latter part of the stroke.' and means for introducing@ pressure fluid to both' si( lesof the compensator-piston and' for varying the pressures on 'opposite sides 'auto- 'maticll'y as thestro'ke of the Amain engine varies.

Tlie'emnbin'ation, with adirecl-ectingnient o 'l' the piston of the engine during the a direct-acting engine, offf' compensating cylinder having'e" piston which acts in opposition to the move'- men't of 'the pistono the'erigr durinff'one part of the strokeand in .conjunctie t ere- .wi'th during another part of the strmmotor fluid Vbeing' continually admitted to" the working side of the compensator-pistonan'd'jnieansfor admitting t-h'e motor fluid intermittently to the opposite side of the' compensator-piston. I

Thefco'mbination, With a direct-acting 1 engine', ora compensating cylinder having a part of the stroke and in conjunction. t' er'e-' motor -iiuid being continually admitted -to the ,Workingside ofthe-compensator# 'isto'n, end/means for admitting'the motor uidto the'oppoSt'e side of said co1npensator-pisten -intermittently and in quantities auto1natically controlled by the-length of stroke."

- 4.' The combination with.' a directfacting engine, of a compensating'cylinder-herring a piston which in opposition'to the movement of the eng1ne-pistonidnring one'part ofv the stroke and in conjunctio" therewith during another part oi the stroke, 'andgineans enginstroke forv transferring ofthe compensatingpiston to the, opposite side to vary the compensating-cylinder pressure; 1

5 The combination With'a'direcbacting engine, ofn compensatingcylinder ha'ring'a piston which acts in opposition to the'move- 'piston which acts in opposition to the'move- `ment of the piston ofthe engine durin one l 9.5' Aanother part' of the'stnoke, the

IOO

'ment-of the; enginespiston during one part of' the' in g sta'n tl y ad 1n itting stroke and in conjunction` .therewith dur-` anothcr partei thcstroke, moans 4for con:

transferring iluid. from the Working `side of `fluid on the working side. ofthe. com pensating piston, and means con-- 'trollcd by the length oi' t.lx e'cnginestroke for the compensating. piston to the opposite side to vary the compensating-cylinder pressure;

V6. The combination with e directfact-ing engine, ol a compensating cylinder having a piston' which acts in opposition to the4 movenient of the engine-piston during one part of the stroke and 1n conjunction therewith during another part of the stroke, means controlled by the length of the engine-stroke for transferring iiuid -from the Working side ot the compensating piston to the opposite side to vary the compensating-cylinder pressure, and an adjustable relief-valve on the hackpressure side of the compensating piston.

7. The combination with a direct-acting engine, of a compensating cylinder having' a piston which acts in opposition toV the movement ci the engine-piston during one part of the stroke and in conjunction therewith during another part of' the stroke, a'port opened by theI compensating piston to transfer more or le'ss iiuid iroin the working side of the compensating piston to the opposite side in accordance with the length of the enginestroke, and an adjustable reliei-Valveon the back-pressure side of the compensating piston.

S. The combination with direct-acting engine, of a compensating piston acting in opposition to the movement of the engini--- piston duringr one part' conjunction therewith during another part oi the stroke, means for applying motor iinid in opposition to the working pressure for adjusting the compensating-cylinder pressure, l

and` means cont-rolled by the length of the engine-stroke for transferring fluid1 from the working side ci' the compensating piston to the opposite side to Vary the compensatingeylinder pressure.

9. The coi'nbination with. direct-acting engine, of a compensating cylinder having a piston acting in opposition to the nieve-nient of the engine-piston,during one part of the stroke and in conjunction tlicrcwith during another part oll the stroke, means controlled by the length ol' the'engiin stroke ior transferring fluid l'roni the working side ol' the compensating piston to the opposite side at each stroke of the engine oi uniform or greater length, and an outlet l'roin the system for the escape of fluid. to lessen the opposition to the Working pressure.

i0. The combinatie with a direct-acting engine, ot a compensating .zylindcr having a piston which acts in opposition to the movement of the`piston of the engine during one part of pthe with during motor lluid being continually admitted to the working sidel oi'4 the compensatir-pstozi means provided 'lor by-passing the motos" [luid to the opposite side of said compensator-piston at a predetermined length ol' theI stroke, means for regulating and relieving the pressure on tle opposite side ol' the com-'1 l pensator-pislon and oi'cans l'or regulating of the stroke and in l stroke and in conjunction thcreanother part oi' the stroke, the r the ratio of expansion and compression of the motor iuid on both. sides of the compensator-piston. l

i1. The combination, with a direct-acting l engine, of a compensating cylinder having a 5 piston which acts in opposition to the movement of the piston of the engine during one part of the stroke and in conjunction therewith during another part o' the stroke, the motor fluid being continually admitted to the Working side of the compensator-piston only, said compensator-piston having a port, one -end 'of which is constantly open to the Working side While the other end remains covered cyiindcr during the greatest art of the stroke and isonly laid open if 1t passes the upper edge ot' the cylinder-bore, thus put-ting length, t

12. The combination, with a direct-acting engine, of a compensating cylinder having a piston which acts in 'opposition to the movement of part of the stroke and in conjunction therewith during another part of the stroke, the motor fluid being continually admitted to the Working sideorI the compensator-piston only,

iiuid to the opposite side of said compensator-piston at a predetermined length-ot the stroke, the upper or counter -acting-side of said compensator-cylinder being fitted with a relief-Valve the lift being made adjustable by hand.

`1 3. 'l` he combination, engine, of a compensating cylinder having a piston which acts in opposition to theniovement oi the piston oi' the engine during one part ol the stroke and in conjunction therewith during another part of the, stroke,thc 'motor liu'id being continually admitted tothe working side of the cornpensator-piston, incansprovided for by-passing the motor iluid to the opposite side 'ot-'said compenleater-pist(in at a predetermined length of the stroke, and means for regul; ting' and relieving the pressure on. 'theopposite side oi" the g c )inpelwater-piston, -said eiijppensator-cylinder being fitted Withchainbers, which maybe l connected by suitably-arranged'valyes'with l the working or the opposite side of the cylinder. f

i in witlicss whereof' li have hereunto signed' f inyname m the presence of two subscrlbing Tvilnesses. l

OTTO lllblll'llllli'l MLHIJLEH.

7 Witnesses:

HENRY llAsrnu,

i VoIJmM/xn HAUPT.

by the inner surface of the compensating-V the piston of the engine during one.

means provided tor by-passing the motor With a direct-acting the twoisides of the piston in communication when the stroke attains a predetermined load oi which as Well as its' i ICO 

